Wood-cutting machine



(No Model.)

A. M. LEMKE.

WOOD CUTTING MACHINE.

Patented Oct. 30, I888.

j UNITED STATES PATENT rrrcn.

ALEXANDER M. LEMKE, OF EAST SAGINAYV, MICHIGAN.

WOOD-CUTTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 392,126, dated October30, 1888.

Application filed May 28, 1888. Serial No. 275,309, (No model.)

To all whom it may concern.-

Be it known that I, ALEXANDER M. LEMKE, a citizen of the United States,residing at East Saginaw, in the county of Saginaw and State ofMichigan, have invented certain new and useful Improvements inWood-Cutting Machines; and I do declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, and to theletters and figures of reference marked thereon, which form a part ofthis specification.

This invention relates to improvements in refuse-wood-cutting machines,the object and utility of which are to provide a machine for cutting orreducing culls or refuse pieces of wood into fine particles, so as toenable the same to be carried through the ordinary dustconveyers to theboiler-room to be used for fuel, obviating the time and expense ofconveying such material by hand.

Machines of this class as have heretofore been constructed consist of aheavy revolving wheel carrying in its peripheral sides a series ofcutting-knives, and is supported in a solid frame-work having at one enda feed-spout with throat-plate, the upper portion of the wheel beinginclosed with a suitable case fitted to the frame. The foregoing mannerof construeting such machines is found to be objectionable for thereasons as follows: These machines, as a general rule and matter ofconvenience, are located under the flooring of factories and mills. Therevolving wheel employed in these machines is a very heavy structure,weighing from twelve to fifteen hundred pounds, and, being supported ina solid framework,can only be removed by the use of hoisting devices,involving much time and expense whenever it is found necessary toexamine or repair the j ournal-boxes or wearing parts; and, further, itis found that frequently chips and pieces of bark are caught and collectbetween the periphery of the wheel and its inclosingcase, where theybind and retard the free action of the wheel, decreasing the power ofthe machine, producing friction and strain on the journal-bearings,causing them to become heated, and frequently melting the babbitting ofthe bearing parts.

The foregoing objections are overcome and the objects sought areattained in my present device, as will be seen from the followingspecification, reference being had to the accompanying drawings, inwhich- Figure 1 is an isometrical view of the machine as constructedaccording to my invention, showing the inclosing-case raised and one endof the frame detached to allow the cutting-wheel to be rolled out ofitsframe. Fig. 2 is a side elevation of Fig. 1, the parts of theinclosing-frame being in section. Fig. 3 is a detail view of theperiphery of the wheel,showing the stripping or cleaning pins located inthe periphery thereof. Fig. 4 is a detail view of the locking device forsecuring one end of the case to the frame.

In the letters of reference in the drawings, WV represents thewhcel,which is of the usual form, being rigidly attached to the shaft F,carrying the pulley m, and K represents the cutting knives secured tothe sides of the wheel, the edges of which project through the sides ofsaid wheel in the usual way, as shown in Figs. 1 and 2.

D shows the base or supporting frame, S the feed-spout formed integraltherewith, and P the throat-plate secured to the bottom plane of thefeed-spout,which is also common in this class of machines.

E represents the removable end of the baseframe D, which is securedwithin the sides of the frame D at one end by means of the screwthreadedbolts 2,which pass through the sides D and enter the screw-threadedholes 3 in the ends of the removable end E, as shown clear] y in Fig. 1.

H represents the sides of the inclosing hood or case, which are securedto the circular top or crown plate 0 by the truss-rods h, passingthrough the lugs d of the sides H, as shown in Figs. 1 and 2. The rearend of said case or hood is hinged at Z to the lower end of the upperportion of the feed-spout S, as shown clearly in Figs. 1 and 2. Thesides H of the case at the forward lower portion areprovided with theforked ears 6, which are formed integral with said sides, and which,when the case is closed, as shown in Fig. 4, meet with the brackets a ofthe sides D of the frame carrying the pivoted bolts 0, with nuts r, andare re ceived by the ears 0, as shown in Fig. 4-, and

by tightening said nuts against the upper face of the ears the case maybe firmly bound to the frame D.

1' shows a series of screw-threaded bolts or pins, which are passed atintervals through the periphery or flanges N of the wheel V, as shownclearly in Figs. 2 and 3. Said bolts are to be adjusted so as to clearthe inner face of the crown-plate G of the case, and when the machine isin operation said bolts act as strippers, and remove all particles-suchas chips and pieces of barl;which have in machines as heretoforeconstructed collected in the space between the case and periphery of thewheel, and thus prevent the wheel from binding and producing friction bythe clogging of such matter, as stated.

Any suitable form or construction of pin may be used in the periphery ofthe wheel; but the bolts shown are most preferred, as they maybe readilyadjusted to compensate for wear and to keep them flush with the innerface of the crown-plate of the case, so as to effectually remove allparticles that might tend to lodge.

The object of providing the base-frame with the removable end E is toenable the cuttingwheel \V to be readily removed from its bearings toinspect or repair the same by simply removing the end E, as shown bydotted lines in Fig. 1, when the wheel may be rolled out of the frame,the ease or hood being previously raised, as shown in Fig. I.

The essential features of my invention consist in the employment ofsuitable stripping pins or bolts, which are located. at intervals in theperiphery of the wheel, and in the construction, as described, of thesupporting frame or case, whereby access to the bearing or wearing partsfor inspection or repairs may be had at will, and to enable the wheel tobe readily removed from its frame when desired without the aid ofhoisting devices, which has heretofore required considerable time and1abor to accomplish.

Having thus fully set forth my invention, what I claim as new, anddesire to secure by Letters Patent, is-

1. In an organized wood-cutting machine, the combination of thecutting-wheel, the supporting-frame having the detachable section at oneend,and the hood hinged to the feed-spout, its free end adapted toswing" upward and from the detachable section of the supporting-frame,as and for the purposes specified.

2. In a wood-cutting machine, the combination ofthe supporting-frame,the cutting-wheel having two peripheries, the projecting pins in theperipheries thereof,the feed-spout,the hood hinged to said feed-spout,and having means for locking its free end to the frame when closed, asand for the purposes specified.

3. In a device for the purposes specified, the combination of thesupporting-frame having the detachable end, with feedspout at tached tothe opposite end of said frame, the cover or hood, hinged as set forth,and the cuttingwvheel having two peripheries, each periphery carrying aseries of cleaning-pins, which pins are adjustably mounted therein, asand for the purposes specified.

In testimony whereof I aiiix my signature in presence of two witnesses.

ALEXANDER M. LEMKE.

\Vitnesses:

HERBERT A. Foimns'r, FANNIE Mouse.

